Astronauts in Zero Gravity Are Able to Move Food Through

question 98

Multiple Choice

Astronauts in zero gravity are able to move food through their digestive tracts because

• A) smooth muscle produces waves of contractions that propel material through the digestive tract.
• B) skeletal muscle puts pressure on the digestive tract.
• C) cardiac muscle maintains a high pressure that moves material through the digestive tract.
• D) striated muscle creates a pressure gradient that forces material from one end of the digestive tract to the other.
• E) skeletal muscle sphincters contract and allow materials to move through the digestive tract.

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Definitions:

Ear of Corn

An ear of corn is the part of the corn plant that contains the kernels, which are the seeds of the plant, encased in a husk.

Nominal Interest Rate

The interest rate before adjustments for inflation, often reported on a per annum basis.

Real Interest Rate

The interest rate adjusted for inflation, reflecting the true cost of borrowing and the real yield to savers and investors.

Inflation Rate

A boost in the average pricing of goods and services across an economy over a distinct timeframe.